Product Overview
Technical Summary
| Parameter | Value |
|---|---|
| Product type | DI 16x110VDC HF |
| Digital inputs | 16; > +60 °C number of simultaneously controllable inputs max. 4 (no adjacent points) |
| Rated input voltage (DC) | 24 V; 48 V, 72 V, 96 V, 110 V, 125 V |
| Rated input voltage (AC) | 24 V; 48 V, 125 V (50 – 60 Hz) |
| Signal 0 input voltage | -5 … +5 V |
| Signal 1 input voltage | +11 … +146 V |
| Input delay | 0.05 / 0.1 / 0.4 / 1.6 / 3.2 / 12.8 / 20 ms parameterizable with DC, 20 ms fixed with AC |
| Counter function | 2 max.; Channel 0 and 1; 6 kHz max.; 32 bit |
| Power consumption from backplane bus | 1.2 W |
| Isolation test | 2 000 V DC (type test) and according to EN 50155 (routine test) |
Applications
- Digital signal acquisition: Acquires digital input signals through 16 parameterizable channels with input characteristic curve in accordance with IEC 61131, type 3.
- Event counting: Counts input events with up to 2 counters on Channel 0 and 1, up to 6 kHz, with up/down counting direction available as Up.
- Input diagnostics: Provides diagnostic alarms, hardware interrupts, wire-break detection, and LED indications for channel and module diagnostics.
Key Features
- 16 digital inputs: Digital input module with 16 channels in groups of 1; inputs are parameterizable and support sourcing or sinking operation.
- Wide input voltage options: Rated input values: 24 V, 48 V, 72 V, 96 V, 110 V, or 125 V DC; 24 V, 48 V, or 125 V AC (50 – 60 Hz).
- Configurable input delay: Input delay is parameterizable from 0.05 ms to 20 ms with DC; 20 ms is fixed with AC.
- Counter function: Counter function is available from FS04, with 2 maximum counters on Channel 0 and 1, counting frequency up to 6 kHz, and 32 bit counting width.
- Diagnostics and interrupts: The module has diagnostics, diagnostic alarms, hardware interrupts, wire-break detection to I < 550 μA, RUN and ERROR LEDs, channel status display, and channel and module diagnostics LEDs.
- SIPLUS protection and isolation: SIPLUS design with conformal coating and -40…+70 °C; OT4 with ST1/2 (+85 °C for 10 minutes). Channels are electrically separated and isolated from the backplane bus.
Frequently Asked Questions
1. How many digital inputs does Siemens 6AG2521-7EH00-4AB0 have?
It has 16 digital inputs in groups of 1. Above +60 °C, a maximum of 4 non-adjacent inputs can be simultaneously controllable.
2. Which input voltage ranges does the module support?
Rated values are 24 V, 48 V, 72 V, 96 V, 110 V, and 125 V DC, plus 24 V, 48 V, and 125 V AC (50 – 60 Hz). Signal 0 is -5 … +5 V and signal 1 is +11 … +146 V.
3. What input delay settings are available?
With DC, the input delay can be parameterized to 0.05 / 0.1 / 0.4 / 1.6 / 3.2 / 12.8 / 20 ms. With AC, it is fixed at 20 ms.
4. What diagnostics does this configuration provide?
It provides diagnostics, diagnostic alarms, hardware interrupts, wire-break detection to I < 550 μA, RUN and ERROR LEDs, channel status display, and channel and module diagnostics LEDs.
